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Indian Journal of Physics

, Volume 92, Issue 1, pp 37–41 | Cite as

Effect of Rashba type spin–orbit interaction on the electronic spectrum of graphene in the presence of a hydrogenic impurity

  • N. GökçekEmail author
Original Paper
  • 190 Downloads

Abstract

The effect of Rashba spin–orbit interaction on the electronic spectrum of gapped graphene with a hydrogenic impurity in the presence of topological defects is analyzed analytically. Degenerate perturbation theory is used to investigate the dependence of electronic spectrum of gapped graphene on the strengths of impurity and Rashba spin–orbit coupling. The results show that, as the strength of Rashba spin–orbit coupling increases, pseudo-Zeeman splitting of energy levels induced by topological defects is enhanced. Therefore, it is possible to tune this pseudo-Zeeman splitting through the strength of Rashba spin–orbit coupling and of the strength of hydrogenic impurity.

Keywords

Graphene Rashba spin–orbit interaction Topological defects Geometric phases 

PACS Nos.

73.22.-f 68.55.Ln 03.65.Ge 

Notes

Acknowledgements

This work is supported by TÜBİTAK under Grant No. 113F103. The author thanks Dr. B. S. Kandemir for valuable comments.

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Copyright information

© Indian Association for the Cultivation of Science 2017

Authors and Affiliations

  1. 1.Department of Physics, Faculty of SciencesAnkara UniversityAnkaraTurkey

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